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Subject: Re: [PATCH] ppc64: improve g5 sound headphone mute
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andreas Schwab <schwab@suse.de>
Cc: linuxppc64-dev <linuxppc64-dev@ozlabs.org>,
       Linux Kernel list <linux-kernel@vger.kernel.org>
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Date: Sun, 17 Apr 2005 00:27:01 +1000
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On Sat, 2005-04-16 at 14:56 +0200, Andreas Schwab wrote:
> Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> 
> > This patch fixes a couple more issues with the management of the GPIOs
> > dealing with headphone and line out mute on the G5. It should fix the
> > remaining problems of people not getting any sound out of the headphone
> > jack.
> 
> There's still a minor problem: when booting with line-out plugged (didn't
> try headphone yet) the initial volume settings are still not right.
> Unplugging and plugging again fixes this.

It can be either alsa not restoring the setup properly, or a bug in the
driver I'm still chasing where the headphone detection happens before
propoer initialisation of the rest of the driver ...